HP Portable PLUS - Page 129

Portable PLUS Computer
Reference Information 10-3
Table 10-1. Diagnostic Test Results (Continued)
Test
Result
Assembly-Level
Component-Level
Oscilloscope
Replacement
Replacement
Routines
Failure
Codes (Continued):
A-O: yy ... Memory drawer PCA
Memory drawer PCA
Find plug-in RAM
in receptacle noted
in receptacle noted
previously.
previously.
A-1:
yy ... For standard memory
For standard memory
Find plug-in
RAM
drawer, move piggy-
drawer, move piggy-
back RAM PCA from
back
RAM PCA from
connector
}2 to con-
connector }2 to con-
nector }3 in receptacle
nector
}3 in receptacle
noted p.eviously. Then
noted previously. Then
if no MB_O' error, re-
if no 'B-O' error, re-
place memory drawer
place memory drawer
PCA; if
MB-O' error, re-
PCA; if MB-O ' error, re-
place piggyback PCA.
place piggyback PCA.
For 1M-byte memory
For
1M-byte memory
drawer, replace the
drawer, replace the
memory drawer PCA.
memory drawer PCA.
B-O: yy ...
For standard memory
For standard memory
Find
plug-in RAM
drawer, move piggy-
drawer, move piggy-
back
RAM PCA from
back
RAM PCA from
connector
}3 to con-
connector }3 to con-
nector }2 in receptacle
nector
} 2 in receptacle
noted previously. Then noted previously. Then
if no M A-O' error, re-
if no M A-O' error, re-
place memory drawer
place memory drawer
PCA; if
M A-O' error, PCA; if M A-O' error,
replace piggyback
replace piggyback
PCA.
PCA.
For
1M-byte memory For 1M-byte memory
drawer, replace the
drawer, replace the
memory drawer PCA.
memory drawer PCA.